Improvement in automatic raking devices for harvesters



2 Sheets-Sheetl. J. TEMPLE.-

AUTOMATIC. BAKING-DEVICE FO'R HARVESTERS. 31 ,179,627. Patented July 4,1876,

Wm WM N.PI-.TERS, PHOTO-LITHOGRAPfiER, WASHINGTON. D. C.

Z Sheets-Sheet. 2. J. TEMPLE.

AUTOMATIC RAKING-DEVICE F QR-HARVEST'ERS. No.179,627. Patented July 4,1876.

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WMQH W mmins. PMOT'LLITHOGRAPHEK WASHINGTON D (:4

UNI E A'rEs JOHN TEMPLE, OF ALBANY, NEW YORK, ASSIGNOR OF ONE-HALF HIS RIGHT TO CHARLES COOPER, OF BENNINGTON, VERMONT.

IMPROVEMENT l-N AUTOMATIC RAKING DEVICES FOR HARVESTERS.

Specification forming part of Letters Patent No. I 79,62' 7, dated July 4, 1876; application filed December 29, 1875.

city and county of Albany, and State of New York, have invented a new and useful Automatic Raking Device for Harvesters, of which the following is a full and exact description, reference beiu g had to the accompanying drawings, making a part of this specification, in which Figure 1 is a plan view; Fig. 2, a longitudinal section; Fig. 3, a horizontal section at the line 00 ac; and Figs. 4 and 5, enlarged and detached views of one of the slides to which the rake-arms are connected.

. My invention relates to the mechanism for imparting and governing the rising and fall ing motion to the rakes; and it consists of the devices constructed and arranged to oper ate substantially in the manner herein described.

As shown in the drawings, A is the drivingshaft, which derives its motion from the driving-wheels of the reaping-machine to which it is applied, the speed whereof is reduced by the means of intermediate gear-wheels, in the ordinary manner. To this driving-shaft a bevel-pinion, B, is secured, which gears intoand drives the bevelgear 0, constituting the flange of the inverted dish-shaped wheel 0, which forms the base-plate for carrying the moving mechanism for giving the necessary motion to the rakes. On the upper face of the wheel 0, arranged radially and at right angles to each other, are the guides D, in which the slides E move freely, one of these guides being constructed so as to permit the lower slide to pass crosswise under the upper one; F, a stationary shaft or stud, upon which the wheel 0 rotates. The slides E are slotted in the direction of their length, for the purpose of avoiding in their movements any interference with the shaft F, which passes up through them. They are provided with tl1e frictionrollers e on the studs 0 which have a free vertical movement through the bosses 6 formed near each end of the slides. These studs are made with rounded button-heads, for the purpose hereinafter described. G are the rake-arms, projecting radially from the .wheel 0, and hinged thereto by pinsthrongh the lugs or ears 0 formed on the wheel. H are the links for connecting the rake-arms G to the slides E. They are attached to the ears 9 of the rake-arms and to the lugs e of the slides, and jointed to both,'so as toyield to the movement of the parts to which they are attached; I, a cam, fixed to the shaft F,

by which it is held in a fixed stationary position. It is provided with a projecting camshaped flange, c", as shown in the drawings, which, with the supplemental hinged cams J and K, divides the cam vertically into upper and lower sections of different conformations, for giving to the slides E their different movements, in the manner hereinafter described. The outline of the upper section of the can] I is clearly shown in Fig. 1, and that of the lower section inFig. 3. L, an inclined faceplate attached to the rod M, moving vertically in the bracket N, secured to the shaft F. 1t is placed beneath the wheel 0, and so arranged that when it is raised by the driver by means of a foot-lever connected to the rod M the button-heads of the studs 6 will come in contact with the inclined face of the plate, thereby raising the frict-ion-rollers a, so as to cause them to move around the projecting flange '0'. During the time the friction-rollers are passing around this flange they are sustained thereon by the lip i formed around its lower edge. The rakes, made in the usual manner,

are secured to the rake-arms G by the means commonly used.

By reference to the drawings it will be seen that a rake is connected to each end of the slides E. By this arrangement their .weights serve to counterbalance each other,

and by connecting them in the manner shown their movements are thereby nicely adjusted to the requirements of the machine, the rakes being moved with the greatest velocity when approaching their lowest or horizontal position, and being retarded in their speed when approaching their vertical position. By a like reference it will also be seen that the slide E shown in side elevation in Fig. 2 has its friction-rollers e depressed, so as to pass around the lower section of the cam I, and that the slide E shown in Fig. 5 has its rollers elevated to pass around the upper section of the cam, in which position they are held by the cross-pins 0 through the studs 6 This arrangement of the rollers is designed for the purpose of using the two rakes, secured to the slide controlled by the lower section of the cam, for raking the grain from the platform, while those secured to the slide controlled by the upper section of the cam, and being slightly raised thereby, as indicated by the dotted lines in Fig. 2, while passing over the platform, merely operate as heaters to throw the grain upon the platform.

The operation of this device is as follows Motion being imparted to the wheel 0, as hereinbefore described, it carries with it in its rotations the slides E, and the rakes secured to the rake-arms G. The friction-rollers e of the slides, by following the conformations of the cam I, give to the rake-arms G and the rakes secured thereto their requisite movements, substantially in the following manner: Those intended for raking the grain from the platform fall to their lowest position immediately infront of the cutter-bar of. the reaper, from which point they rise gradually while passing over the platform to conform to the inclination thereof. After passing the platform they rise quite rapidly until they are in a vertical position just before reaching the seat occupied by the driver, and in this position they are carried around until they reach a point where they can be lowered without striking the horses, when they drop quite rapidly until they arrive at the position first described, in front of thecutter-bar. In effecting; these movements the slide to which these rakes are connected is governed by the lower section of the cam I and the supple mental cams J and K, (which are attached to the cam I by their hinges j and 7a,) which fill out this section of the cam to equal the distance between the rollers e of each slide. The supplemental cam J prevents the rake that is passing over the platform from being forced up during the raking off of the grain, and the supplemental cam K prevents the droppingralte from falling too suddenly when it has assumed a position wherein its weight overcomes that of the rising rake on the opposite end of the slide.

The rakes which are intended for use as heaters only are attached to a slide having its friction-rollers e sustained by the crosspin a in the elevated position shown in Fi 5. Their motions do not vary materially from the other rakes, excepting in their movement over the platform, in passing which they rise slightly (as indicated by the position of the arm shown in dotted lines in Fig. 2) after passing from the front of the cutter-bar. To effect this, the roller which governs the movement of the slide passes around the project'- on the opposite end of the slide passes under the inclined point j and thence under the supplemental cam J, which rises up so as to permit the roller to traverse the periphery of the cam I. In a like mannerthe supplemental cam K is raised for the same purpose.

For harvesting a heavy crop of grain, the cross-pins 0" should be removed from the studs, so as to allow the friction-rollers to drop into position for passing around the lower section of the cam I, thereby using all the rakes for the purpose of raking.

For a medium crop the two rollers of one of the slides are sustained by the cross-pins in the elevated position shown in Fig. 5, so that every other rake will act as a beater, as hereinbefore described.

For light crops, the driver, by raising the inclined face-plate L, so as to cause the rollers to pass around the projecting flange i, can bring all of the rakes into operation as heaters until sufficient grain has been thrown upon the platform to form a sheaf, and then, by simply permitting the inclined face-plate to drop down, so as to allow one of the rollers to pass around the lower section of the cam I, and thereby bringing the rake into operation, the accumulated grain upon the platform will be removed therefrom.

By this means it is manifest that my invention can be adjusted and adapted to thein combination with the slides E, provided.

with the rollers 6 and having two rake-arms,

G connected to, and co-operating with, each i of said slides, and the cam I, when arranged to operate substantially in the manner and for the purpose specified.

2. The slides E, provided with two rollers, 6 and having the lugs e at each end for connecting thereto the links H, in the manner and for the purpose specified.

3. The slides E, having two rake-arms, Gr, connected and cooperating therewith, substantially in the manner and for the purpose specified.

at. The combination, with the wheel 0 and cam I, of the slides E, having two rake-arms, G connected to, and co-operating with each of said slides, in the manner and for the purpose herein specified.

5. The cam I, having a projecting camshaped flange, W, in combination with the supplemental cams J and K, as and for the purpose specified.

6. The'cam I, having two actuating surfaces, arranged one above the other, as herein described, in combination with the slides E, provided with the vertically-adjustable rollers c, and having two rake-arms, Gr,

connected to each slide when arranged to op erate substantially as and for the purposes and inclined face-plate L, as and for the purspecified. pose specified.

7. The inclined face-plate L when arranged in the manner herein descril ed, and for the JOHN TEMPLE purpose specified. Witnesses:

8. The combination of the wheel 0, slides l WILLIAM H. LOW,

E, rake-arms G, and links H, with the cam I HENRY O. HASKELL. 

